[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Arcjet Motor



Hi James, Greg and All:

I had an idea:
Get lets say 7 (could be more or less) smaller solid rocket
motors ( 6 around 1 in the middle).Set up the attitude of the satellite.
Fire off the 1st set of outside 2 motors. Evaluate orbit. Change
attitude if neccessary. Fire off the 2nd set of 2 outside motors.
Reevaluate orbit. Change attitude if neccessary.  Fire off 3rd set
of 2 or if smaller boost is needed, use the one in the middle
or save the rest for later use.
This was one example. This way you can set up any different combination
of motor ignition for different amounts of thrust needed as long as an
even number (2,4,6) of outside opposing motors are burned at the
same time. This I think would help keep the thrust at the C/G of the craft.

Could this work or am I missing something?

Just a thought...I'm here to learn.

73
Tom / N7HXP
mjrtom@home.com

----- Original Message ----- 
From: "James Sharp" <jsharp@psychoses.org>
To: "Greg D." <ko6th_greg@hotmail.com>
Cc: <amsat-bb@AMSAT.Org>
Sent: Monday, June 04, 2001 11:37 AM
Subject: Re: [amsat-bb] Arcjet Motor


> 
> Yeah, you could, but then you'd have to start comprimising on orbital
> changes if you need them.  Example:  Do you a) increase the orbital
> inclination to 68 degrees, b) adjust the perigee by 4000km, or c) change
> the inclination to 45 degrees and adjust the perigee by 2000km.
> 
> And adjusting multiple orbital parameters in one burn can get more than a
> little hokey.
> 
> > Could we do the orbit change in one burn, using a solid motor?
> > Very reliable, light weight, good thrust.
> >
> > I'd still put the ArcJet on board, for tweeks.
> >
> 
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home